As I have high afternoon and evening cortisol I think I need some adrenal support as I raise my T3 dosage. I tried PS and L-Theanine last year and my sleep seemed to improve ( I still woke up a few times, but got back to sleep fairly easily), but the nutritionist I was seeing advised me to only stay on them for about a month. Am thinking of trying them again, and would like advice about how long to stay on adaptogens. Can you use them indefinitely? I was taking 100mg PS before lunch and 100mg L-Theanine before tea. Thanks.